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path: root/drivers/mtd
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2011-01-06mtd: txx9ndfmc: limit transfer bytes to 512 (ECC provides 6 bytes max)Ralf Rösch
See commit: c0cbfd0e81d879a950ba6f0df3f75ea30c5ab16e Using __nand_correct_data() helper function, this driver can read 512 byte (with 6 byte ECC) at a time. This is correct, but not more: With NAND chips providing page sizes > 512 Bytes chip->ecc.bytes are calculated > 6 in txx9ndfmc_nand_scan. According the data sheet there are (only) 6 bytes ECC available. After applying the patch a Hynix 512M*8 with 2KiB page size could be successfully formatted and used with an ubifs file system. Signed-off-by: Ralf Roesch <ralf.roesch@rw-gmbh.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-06mtd: cfi_cmdset_0002: add support for Samsung K8D3x16UxC NOR chipsGuillaume LECERF
These chips report CFI v3.3 [1], so patch them on the fly to the more correct v1.3. Discussed and tested by the OpenWRT people [2]. [1] http://www.samsung.com/global/system/business/semiconductor/product/2007/6/11/NORFlash/32Mbit/K8D3216UBC/ds_K8D3x16UxC_rev17.pdf [2] https://dev.openwrt.org/ticket/866 Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-06mtd: cfi_cmdset_0002: add support for Samsung K8D6x16UxM NOR chipsGuillaume LECERF
These chips report CFI v0.0 [1], so extend cfi_fixup_major_minor() to patch all Samsung chips from 0.0 to 1.0. Discussed and tested by the OpenWRT people [2]. [1] http://www.samsung.com/global/system/business/semiconductor/product/2007/6/11/NORFlash/64Mbit/K8D6316UTM/ds_K8D6x16UxM_rev16.pdf [2] https://dev.openwrt.org/ticket/7348 Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-06mtd: nand: ams-delta: drop omap_read/write, use ioremapJanusz Krzysztofik
There is a common requirement for not using OMAP specific omap_readw() / omap_writew() function calls in drivers/, but replace them with readw() / writew() on ioremap()ped addresses passed from arch/ instead. The patch implements this idea for the Amstrad Delta NAND driver. To be able to use the modified driver, the board file is updated with the platform device I/O resource declaration, which is passed from there. Created and tested against linux-2.6.37-rc5, on top of recent patch 'MTD: NAND: ams-delta: convert to platform driver'. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-06mtd: m25p80: add debugging trace in sst_writeNicolas Ferre
Add a DEBUG(MTD_DEBUG_LEVEL2, ..) trace at beginning of sst_write() function as it is done in m25p80_write() function. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-06mtd: nand: ams-delta: select for built-in by defaultJanusz Krzysztofik
Now that the Amstrad Delta NAND driver is converted to a platform driver, which prevents it from interfering with other unrelated hardware in multiple OMAP1 cpu and machine configurations, it can be automatically configured for being built into the kernel if the Amstrad Delta board is also selected. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-06mtd: OneNAND: lighten scary initial bad block messagesAdrian Hunter
Initial bad blocks are normal but the messages look like errors. Make the messages less scary, make the main message an informational message not a warning, make the message displaying registers a debug message and include the address there instead of in the informational message. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-06mtd: OneNAND: OMAP2/3: add support for command line partitioningAdrian Hunter
Add the ability to parse MTD partition information from the kernel command line. Note that a pointless BUG_ON is removed, as are redundant calls to 'del_mtd_partitions()' and 'del_mtd_device()' because they are also done by 'onenand_release()'. Finally note that 'add_mtd_device()' returns 1 on failure so the error condition was incorrect. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-06mtd: nand: rearrange ONFI revision checking, add ONFI 2.3Brian Norris
In checking for the ONFI revision, the first conditional (for checking "unsupported" ONFI) seems unnecessary. All ONFI revisions should be backwards-compatible; even if this is not the case on some newer ONFI revision, it should simply fail the second version-checking if-else block (i.e., the bit-fields for 1.0, 2.0, etc. would not be set to 1). Thus, we move our "unsupported" condition after having checked each bit field. Also, it's simple enough to add a condition for ONFI revision 2.3. Note that this does *NOT* mean we handle all new features of ONFI versions above 1.0. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Acked-by: Florian Fainelli <ffainelli@freebox.fr> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-06mtd: nand: choose correct chip name (ONFI bug)Brian Norris
We have the order of the conditional wrong for choosing the ONFI chip name vs. the ID table name. Without this fix, we will almost *always* choose a NULL string to print out instead of the correct one. This has already been suggested by Matthieu Castet. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Acked-by: Florian Fainelli <ffainelli@freebox.fr> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-06mtd: nand: ams-delta: convert to platform driverJanusz Krzysztofik
In its current form, the driver may interfere with different hardware on different boards if built into the kernel, hence is not suitable for inclusion into a defconfig, inteded to be usable with multiple OMAP1 cpu and machine types. Convert it to a platform driver, that should be free from this issue. Created and tested against linux-2.6.37-rc5 on Amstrad Delta. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-06mtd: don't use flush_scheduled_work()Tejun Heo
flush_scheduled_work() is deprecated and scheduled to be removed. Directly flush cxt->work_{erase|write} on removal instead. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-06mtd: OneNAND: Fix multi block erase support at 4KiB pagesizeKyungmin Park
Original 4KiB pagesize chip (SLC) doesn't support Multi block erase at Spec. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-06Revert "mtd: nand: add check for out of page read"Artem Bityutskiy
This reverts commit e14feafbe0d5c6d64bb6fe4eba928cb57ac9a4c8. The commit limits the maximum amount of bytes which can be read at one go to the OOB size, which is incorrect, because mtd->read_oob() allows reading multiple pages at a time, see comment near "struct mtd_oob_ops" at include/linux/mtd/mtd.h. So this patch breaks ABI and hence, has to be reverted. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-03of: make drivers depend on CONFIG_OF instead of CONFIG_PPC_OFRob Herring
Some OF drivers could likely be used on non-powerpc OF based platforms, so fix the kconfig depends to be CONFIG_OF instead of CONFIG_PPC_OF. Compile tested on ARM and sparc. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-12-22Merge branch 'master' into for-nextJiri Kosina
Conflicts: MAINTAINERS arch/arm/mach-omap2/pm24xx.c drivers/scsi/bfa/bfa_fcpim.c Needed to update to apply fixes for which the old branch was too outdated.
2010-12-21OMAP2/3: OneNAND: add 104MHz supportAdrian Hunter
Add GPMC timings for 104MHz OneNAND. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-12-14Merge branch 'omap-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: OMAP2: PRCM: fix some SHIFT macros that were actually bitmasks OMAP2+: PM/serial: fix console semaphore acquire during suspend OMAP1: SRAM: fix size for OMAP1611 SoCs arm: omap2: io: fix clk_get() error check arm: plat-omap: counter_32k: use IS_ERR() instead of NULL check omap: nand: remove hardware ECC as default omap: zoom: wl1271 slot is MMC_CAP_POWER_OFF_CARD omap: PM debug: fix wake-on-timer debugfs dependency
2010-12-12Merge branch 'fix' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
2010-12-06omap: nand: remove hardware ECC as defaultSukumar Ghorai
Commit 2c01946c6b9ebaa5a89710bc42ca224a7f52f227 (omap3 nand: cleanup virtual address usages) wrongly enabled CONFIG_MTD_NAND_OMAP_HWECC which breaks boards like beagle and pandora that use software ECC for write. Boards like beagle and pandora uses sw ecc for write (e.g. binary flushed from u-boot) and read from kernel. Signed-off-by: Sukumar Ghorai <s-ghorai@ti.com> Acked-by: David Woodhouse <David.Woodhouse@intel.com> [tony@atomide.com: updated comments] Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-12-03mtd: nand: Fix integer overflow in ONFI detection of chips >= 4GiBDavid Woodhouse
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: onenand: bugfix for 2x mode bad block handlingRoman Tereshonkov
This bug becomes visible in 2x mode when chip->writesize is different from mtd->writesize (= 2 * chip->writesize). At this case the bad block information is read from the first and the third physical pages instead of the first and the second as specification states. Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: OneNAND: Fix 4KiB pagesize OOB handlingKyungmin Park
Original 4KiB pagesize chip (SLC) doesn't support OOB operations at Spec. And it's also same at Flex-OneNAND. Remove the MLC macro if possible and use 4KiB pagesize macro since MLC has 4KiB pagesize. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: FSMC NAND use the PrimeCell identifier macrosLinus Walleij
The FSMC actually has a standard ARM PrimeCell ID register, and the "revision" part of that register contains the thing that the code is looking at. Reuse the infrastructure from the AMBA bus abstraction and rid local defines. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: FSMC NAND remove PARTITION macro and fix compile noiseLinus Walleij
This removes the PARTITION macro that David didn't like and also removes a local variable that was dangling unused in some #ifdefs by being a bit more clever. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: fix section mismatch on sst25lFabio Estevam
Building the kernel with 'make CONFIG_DEBUG_SECTION_MISMATCH=y´ resulted in: WARNING: vmlinux.o(.data+0x15938): Section mismatch in reference from the variable sst25l_driver to the function .init.text:sst25l_probe() The variable sst25l_driver references the function __init sst25l_probe() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, Fix the section mismatch. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: mxc_nand: Fix warning on nr_parts unused variableFabio Estevam
If CONFIG_MTD_PARTITIONS is not selected, then the following warning is generated: CC drivers/mtd/nand/mxc_nand.o drivers/mtd/nand/mxc_nand.c: In function 'mxcnd_probe': drivers/mtd/nand/mxc_nand.c:1014: warning: unused variable 'nr_parts' Fix it by marking nr_parts as __maybe_unused. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: fsl_elbc_nand: fix jffs2 problem after NAND-flash image record in u-bootSergej.Stepanov@ids.de
This patch should fix the following problem: 1. the jffs2-image update in the u-boot was ok 2. first restart and first mount of the NAND-flash-partition was also ok 3. before the restart of controller there are no any activity on NAND-flash except of the jffs2_gcd_mtdX-process ... 4. BUT after the second restart the NAND-flash-partition could not be really used after the second mount, dmesg filled with messages: ... jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x03ce0000: 0xc0ff instead jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x03d00000: 0xc0ff instead .... Just for for info: the behaviour observed on mpc8313-based board with the large-page NAND. The only activity on NAND-flash was the garbage collector process, that looks for CLEANMARKER-nodes As Scott said it was broken by commit 3ab8f2a2e7011c5e83363b42950757e46ef06824 Signed-off-by: Sergej Stepanov <Sergej.Stepanov@ids.de> -- Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: fix master device identification for mtd repartitionRoman Tereshonkov
Function mtd_has_master renamed as mtd_is_partition to follow the function logic. The patch fixes the problem of checking the right mtd device for partition creation. To delete partition checking is not needed here so as it is done in mtd_del_partition. By master we consider the mtd device which does not belong to any partition. Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: nand: add check for out of page readJason Liu
When run mtd_oobtest case, there will be one error for step(4), which turned out it need add one check for out of page read in nand_do_read_oob just like mtd_do_write_oob did it already. This commit also fix one typo error for comments in mtd_do_write_oob Signed-off-by: Jason Liu <r64343@freescale.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: fix nand kernel-doc warningsRandy Dunlap
Warning(include/linux/mtd/nand.h:543): No description found for parameter 'badblockbits' Warning(drivers/mtd/nand/nand_bbt.c:1101): No description found for parameter 'mtd' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: linux-mtd@lists.infradead.org Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: cfi_fixup: remove unused 'param' parameterGuillaume LECERF
The 'param' parameter has never been used since its introduction, so simply remove it. Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: nand: Use printf extension %pR for struct resourceJoe Perches
Using %pR standardizes the struct resource output. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: maps: Use printf extension %pR for struct resourceJoe Perches
Using %pR standardizes the struct resource output. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: NAND: jz4740: Remove custom {read,write}_page handlersLars-Peter Clausen
Now that the mtd core supports more then 64 ecc bytes we can use it instead of some a custom hack in the jz4740 nand driver. This patch removes the custom {read,write}_page handlers from the jz4740 nand driver. Thus the driver will now fallback to the default handlers from the nand core. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: NAND: jz4740: Make 'struct platform_driver jz_nand_driver' staticLars-Peter Clausen
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: remove unnecessary casts of void ptr returning alloc function return valuesJesper Juhl
The [vk][cmz]alloc(_node) family of functions return void pointers which it's completely unnecessary/pointless to cast to other pointer types since that happens implicitly. This patch removes such casts from drivers/mtd/ Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: mtdchar: fix information leak to userlandVasiliy Kulikov
Structure mtd_info_user is copied to userland with padding byted between "type" and "flags" fields uninitialized. It leads to leaking of contents of kernel stack memory. Signed-off-by: Vasiliy Kulikov <segooon@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: onenand: implement cache program feature for 4KiB page onenandRoman Tereshonkov
Implement cache program feature for 4KiB page onenand. This feature improves the write data performance. The observed 128KiB data program speed change is from 8827KiB/s to 14156 KiB/s when the feature is enabled. Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: onenand: fix omap2 code to handle cache program featureRoman Tereshonkov
Some fixes are introduced into omap2 code to handle errors when cache program feature is used. Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: use vzallocJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: OneNAND: Fix page offset handling at 2KiB pagesizeKyungmin Park
When use the 2KiB pagesize, it should be set the correct page offset. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: nandsim: spell fixes in commentssrimugunthan
Signed-off-by: srimugunthan <srimugunthan.dhandapani@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: m25p80: Add support for Macronix MX25L25655EKevin Cernekee
Untested, but expected to be compatible with MX25L25635E which I did test. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: m25p80: Add support for Macronix MX25L25635EKevin Cernekee
This is a 256Mbit (32MiB) part so minor changes were made to support 4-byte addressing. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: m25p80: Reinstate error print on unrecognized flashKevin Cernekee
Commit b34bc037b26e621e5fc13466767e4da110a7b3d3 removed the "unrecognized JEDEC id" error message, causing the probe function to silently abort if the flash ID is unrecognized. It is desirable to produce diagnostic output in this situation so that the user has some idea what went wrong. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: Fix MTD_OF_PARTS for all arch and minor tidy of MTD_PARTITIONSGrant Likely
MTD_OF_PARTS should be possible on all architectures, not just powerpc and microblaze, and it probably should not be a user selectable option. Neither does it need to be in a separate module. Also, rework MTD Kconfig to group options dependant on MTD_PARTITIONS into a if/endif block. Do the same for MTD_REDBOOT_PARTS. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: bcm963xx-flash: try JEDEC probe if CFI failsGuillaume LECERF
Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Acked-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03UBI: fix corrupted PEB detection for NOR flashArtem Bityutskiy
My new shiny code for corrupted PEB detection has NOR specific bug. We tread PEB as corrupted and preserve it, if 1. EC header is OK. 2. VID header is corrupted. 3. data area is not "all 0xFFs" In case of NOR we have 'nor_erase_prepare()' quirk, which invalidates the headers before erasing the PEB. And we invalidate first the VID header, and then the EC header. So if a power cut happens after we have invalidated the VID header, but before we have invalidated the EC header, we end up with a PEB which satisfies the above 3 conditions, and the scanning code will treat it as corrupted, and will print scary warnings, wrongly. This patch fixes the issue by firt invalidating the EC header, then invalidating the VID header. In case of power cut inbetween, we still just lose the EC header, and UBI can deal with this situation gracefully. Thanks to Anatolij Gustschin <agust@denx.de> for tracking this down. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Reported-by: Anatolij Gustschin <agust@denx.de> Tested-by: Anatolij Gustschin <agust@denx.de>
2010-11-30ARM: pxa: fix pxa2xx-flash section mismatchMarek Vasut
Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
generated by cgit (git 2.34.1) at 2025-09-21 09:58:29 +0000